AS4809 123.172.0.0/19 CIDR and IP Range Summary.ASN: 4809 - China Telecom Next Generation Carrier NetworkHost Count: 8190Addressable IPs: 8192123.172.0.0/24123.172.1.0/24123.172.2.0/24123.172.3.0/24123.172.4.0/24123.172.5.0/24123.172.6.0/24123.172.7.0/24123.172.8.0/24123.172.9.0/24123.172.10.0/24123.172.11.0/24123.172.12.0/24123.172.13.0/24123.172.14.0/24123.172.15.0/24123.172.16.0/24123.172.17.0/24123.172.18.0/24123.172.19.0/24123.172.20.0/24123.172.21.0/24123.172.22.0/24123.172.23.0/24123.172.24.0/24123.172.25.0/24123.172.26.0/24123.172.27.0/24123.172.28.0/24123.172.29.0/24123.172.30.0/24123.172.31.0/24